GB2149990A - A semiconductor integrated circuit - Google Patents

A semiconductor integrated circuit Download PDF

Info

Publication number
GB2149990A
GB2149990A GB08421200A GB8421200A GB2149990A GB 2149990 A GB2149990 A GB 2149990A GB 08421200 A GB08421200 A GB 08421200A GB 8421200 A GB8421200 A GB 8421200A GB 2149990 A GB2149990 A GB 2149990A
Authority
GB
United Kingdom
Prior art keywords
capacitor
switched
inversion
type switched
semiconductor integrated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08421200A
Other languages
English (en)
Other versions
GB8421200D0 (en
Inventor
Masashi Tamokoshi
Toshiro Suzuki
Hiroshi Takatori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB8421200D0 publication Critical patent/GB8421200D0/en
Publication of GB2149990A publication Critical patent/GB2149990A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Networks Using Active Elements (AREA)
GB08421200A 1983-11-18 1984-08-21 A semiconductor integrated circuit Withdrawn GB2149990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58216144A JPH0793553B2 (ja) 1983-11-18 1983-11-18 スイッチド・キャパシタ・フィルタ

Publications (2)

Publication Number Publication Date
GB8421200D0 GB8421200D0 (en) 1984-09-26
GB2149990A true GB2149990A (en) 1985-06-19

Family

ID=16683960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08421200A Withdrawn GB2149990A (en) 1983-11-18 1984-08-21 A semiconductor integrated circuit

Country Status (7)

Country Link
US (2) US4769612A (fr)
JP (1) JPH0793553B2 (fr)
KR (1) KR930007299B1 (fr)
DE (1) DE3441476C2 (fr)
FR (1) FR2555377A1 (fr)
GB (1) GB2149990A (fr)
IT (1) IT1177241B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176072B (en) * 1985-05-27 1989-12-06 Mitel Corp Decimating filter
GB2275144A (en) * 1993-02-12 1994-08-17 Pilkington Micro Electronics Programmable switched capacitor circuit

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619974B1 (fr) * 1987-08-26 1991-10-18 France Etat Quadripole de filtrage a capacites commutees pour lineariser la reponse phase/frequence dudit filtre
USRE35494E (en) * 1987-12-22 1997-04-22 Sgs-Thomson Microelectronics, S.R.L. Integrated active low-pass filter of the first order
US4948992A (en) * 1988-10-31 1990-08-14 International Business Machines Corporation Static method to negate offset voltages in CMOS operational amplifiers
US4988952B1 (en) * 1989-06-06 1995-10-31 Linear Techn Inc High q switched capacitor filter having internal thin-film resistors
US5168461A (en) * 1989-08-21 1992-12-01 Industrial Technology Research Institute Switched capacitor differentiators and switched capacitor differentiator-based filters
JP3337241B2 (ja) * 1991-07-26 2002-10-21 テキサス インスツルメンツ インコーポレイテツド 改良型多重チャンネル・センサーインターフェース回路とその製造方法
US5495192A (en) * 1992-02-10 1996-02-27 Yozan Inc. Sample hold circuit
US5341050A (en) * 1992-03-20 1994-08-23 Hughes Aircraft Company Switched capacitor amplifier circuit operating without serially coupled amplifiers
JP3260197B2 (ja) * 1993-02-16 2002-02-25 株式会社鷹山 加算回路
US5459417A (en) * 1993-06-28 1995-10-17 Alliedsignal Inc. Apparatus for detecting DC content of an AC waveform
US5391999A (en) * 1993-12-02 1995-02-21 Motorola Inc. Glitchless switched-capacitor biquad low pass filter
DE4411693A1 (de) * 1994-04-06 1995-10-12 Killat Dirk Dipl Ing Schaltung und Verfahren zur Tiefpaßfilterung bei Mehrfachabtastung von Signalen
EP0762157A3 (fr) * 1995-09-04 1997-08-13 Nec Corp Circuit intégré optique et son procédé de fabrication
US6185264B1 (en) * 1997-12-17 2001-02-06 Ove Kris Gashus Apparatus and method for frequency shift keying
CA2229737A1 (fr) * 1998-02-18 1999-08-18 Philsar Electronics Inc. Convertisseur analogique/numerique pour applications radioelectriques
US6057713A (en) * 1998-03-12 2000-05-02 Motorola, Inc. Method and apparatus for performing voltage sampling
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7092043B2 (en) * 1998-11-12 2006-08-15 Broadcom Corporation Fully integrated tuner architecture
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
JP4861566B2 (ja) * 2001-05-08 2012-01-25 富士通セミコンダクター株式会社 スイッチド・キャパシタ・フィルタ回路
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7737732B2 (en) * 2005-07-01 2010-06-15 Cambridge Analog Technologies, Inc. Constant slope ramp circuits for sample-data circuits
US8294495B2 (en) * 2005-07-01 2012-10-23 Maxim Integrated Products, Inc. Constant slope ramp circuits for sampled-data circuits
US7656226B2 (en) * 2006-03-31 2010-02-02 Intel Corporation Switched capacitor equalizer with offset voltage cancelling
US20110043286A1 (en) * 2009-08-18 2011-02-24 Gerald Youngblood Direct conversion receiver
US8416014B2 (en) * 2010-03-12 2013-04-09 Allegro Microsystems, Inc. Switched capacitor notch filter with fast response time
US8638165B2 (en) * 2011-06-06 2014-01-28 Qualcomm Incorporated Switched-capacitor DC blocking amplifier
US9024684B2 (en) * 2013-03-15 2015-05-05 Qualcomm Incorporated Area-efficient PLL with a low-noise low-power loop filter
CN105027219B (zh) * 2013-03-28 2018-09-11 株式会社日立制作所 延迟电路、使用延迟电路的电子电路以及超声波拍摄装置
CN104348481B (zh) * 2013-07-31 2017-06-06 上海华虹宏力半导体制造有限公司 用于锁相环的有源滤波器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375625A (en) * 1981-05-21 1983-03-01 Gte Automatic Electric Laboratories, Inc. Switched-capacitor source resistor simulation circuit
JPS5839109A (ja) * 1981-09-01 1983-03-07 Toshiba Corp 低域通過フィルタ
JPS60260222A (ja) * 1984-06-07 1985-12-23 Nec Corp 適応可変スイツチトキヤパシタフイルタ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M S GHAUSI & K R LAKER }MODERN FILTER DESIGN} PUBLISHED 1981 PRENTICE-HALL PAGES 464, 465 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176072B (en) * 1985-05-27 1989-12-06 Mitel Corp Decimating filter
GB2275144A (en) * 1993-02-12 1994-08-17 Pilkington Micro Electronics Programmable switched capacitor circuit
GB2275144B (en) * 1993-02-12 1997-04-23 Pilkington Micro Electronics Programmable switched capacitor circuit

Also Published As

Publication number Publication date
JPH0793553B2 (ja) 1995-10-09
KR850004359A (ko) 1985-07-11
DE3441476A1 (de) 1985-05-30
US4835482A (en) 1989-05-30
GB8421200D0 (en) 1984-09-26
KR930007299B1 (ko) 1993-08-04
DE3441476C2 (de) 1996-01-04
IT8423632A0 (it) 1984-11-16
FR2555377A1 (fr) 1985-05-24
US4769612A (en) 1988-09-06
IT1177241B (it) 1987-08-26
JPS60109321A (ja) 1985-06-14
IT8423632A1 (it) 1986-05-16

Similar Documents

Publication Publication Date Title
GB2149990A (en) A semiconductor integrated circuit
CA1190615A (fr) Filtre a n trajets a condensateurs commutes
US5973536A (en) Switched capacitor filter
US4543534A (en) Offset compensated switched capacitor circuits
Laker Equivalent circuits for the analysis and synthesis of switched capacitor networks
GB2189102A (en) Multiplexed capacitor method and circuitry
EP0047098A1 (fr) Circuit atténuateur ajustable
US4644304A (en) Switched-capacitor pseudo-n-path filter
EP0483419A1 (fr) Circuit additionneur échantillonneur-bloqueur totalement différentiel
CA1149479A (fr) Filtre en echelle a condensateur commute a faible sensibilite utilisant une pastille mos monolithique
CA1233890A (fr) Filtre decimateur
US3852619A (en) Signal shaping circuit
US4306197A (en) Switched-capacitor elliptic filter
EP1219087B1 (fr) Procede et appareil de traitement de signaux associes a des voies multiples
US6727749B1 (en) Switched capacitor summing system and method
US5408142A (en) Hold circuit
US4625293A (en) Parallel programmable charge domain device
CA1233891A (fr) Filtre a impulsions a condensateurs commutes
Fleischer et al. An NMOS analog building block for telecommunication applications
US6404262B1 (en) Switched capacitor integrator using unity gain buffers
GB2111780A (en) Improvements in or relating to amplifier systems
EP0986019A2 (fr) Circuit de calculation de nombres complexes
Perez-Aloe et al. Programmable time-multiplexed switched-capacitor variable equalizer for arbitrary frequency response realizations
CA1106455A (fr) Dispositif a semiconducteur pour effectuer des operations matricielles
US4243958A (en) Phase-multiplexed CCD transversal filter

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)